Fix for DynapiModelFactory
What does this pull request do?
Fixes DynapiModelFactory. Previously model uri was returned by model names map. Dynamic api instances were changed to store uri some time ago, but DynapiModelFactory didn't reflect that. This PR removes request to ModelNames and adds error log in case returned model is null and throws exception to stop execution.
Interested parties
@chenejac @ivanmrsulja